ACTIVATED CARBON

 Physical characteristics:

Color:  black
Density:  27.5 pounds per cubic foot
Mesh size: 8x30 mesh    12x40 mesh
There are many applications for our various grades of carbon. They may include point of entry-point of use (POE/POU) water filters for removing chlorine and organic contaminants from tap water, extruding carbon block for drinking water cartridges and color and taste removal in water purification processes. 

AWWA Standard B604 and NSF Standard 61 approved.

 ANTHRACITE:

Physical characteristics:

Color:  black
Density:  52 pounds per cubic foot
Effective size:  .60-2.30 millimeters
Anthracite typically produces consistent improvements in turbidity removal because, in part, to more efficient solids loading. Low uniformity coefficient media also produces smaller changes in effluent turbidity during periods of peak influent turbidity. Northern's anthracite filter media is produced from the highest quality anthracite available to ensure the physical characteristics of hardness, durability and performance.

AWWA Standard B100-01 and NSF Standard 61 approved.

BIRM

 Physical characteristics:

Color: black
Density: 45 – 50 pounds per cubic foot
Effective size: .48 millimeters
UC (D 60): 1.72

Birm is an efficient media to remove dissolved iron and manganese compounds from raw water supplies. It acts as an insoluble catalyst to enhance the reaction between dissolved oxygen and the iron compounds. 

Other advantages of birm include long material life with relatively low attrition loss, a wide temperature performance range and extremely high removal efficiency. Under proper water conditions, no chemicals are required for maintenance. Regeneration is not required.

AWWA Standard B100-01 and NSF Standard 61 approved.

CALCITE

 Physical characteristics: Color: near white
Density: 100 pounds per cubic foot
CaCO3: 95% minimum
MgCO3: 3.0% maximum

Acidic waters on contact with Calcite slowly dissolve the calcium carbonate media to raise the pH that reduces the potential leaching of cooper, lead and other metals found in typical plumbing systems. 

Advantages include a high uniformity coefficient for maximum contact for controlled pH correction.

NSF Standard 61 approved.

FILTER SAND

 Physical characteristics: Color: Light brown
Effective size: .35 - 2.5 millimeters
Acid solubility: <1.7%
Specific gravity: 2.67
MOH hardness: 7
Filter sand is an extremely effective filter media because of its ability to hold back coagulum or precipitates containing impurities. Filter sand size, angularity and hardness are the important filter sand characteristics to ensure proper filtering.

Our filter sand is triple washed in our manufacturing process producing a squeaky clean filter sand that is virtually silt and fines free. Initial backwash cycles are reduced as well, saving significant amounts of time and water in your start-up backwash cycle. 

AWWA Standard B100-01 and NSF Standard 61 approved for drinking water and NSF Standard 50 approved for swimming pools.

FILTER-AG^®

 Physical characteristics:

Color: light gray to near white
Density: 24 - 26 pounds per cubic foot
Effective size: .57 millimeters
UC (D 60): 1.66

Filter-AG granules have irregular surface characteristics allowing maximum removal of suspended matter throughout the filter bed. Filter-AG can be used in either pressure or gravity flow filter systems. It typically removes normal suspended dolids down to 20 – 40 micron ranges. 

Advantages of Filter-AG include less pressure loss than most other mediums. It is lightweight and requires lower backwash rates. Filter-AG has high dirt removal capacity that result in longer filter runs with substantial savings in labor cost, backwash water and time out service.

AWWA Standard B100-01 and NSF Standard 61 approved.

GARNET

 Physical characteristics:

Color: reddish black
Density: 120 – 149 pounds/cubic foot
Effective size: .21 – 2.45 millimeter
UC (D 60): < 1.6
Specific gravity: > 4.0
Acid solubility: < 1.0%

Almandite garnet is a chemically inert non-metallic mineral that is quite common in the natural environment. Garnet is well known for its hardness and durability. It has a high specific gravity as well as its chemical and abrasive resistance makes garnet an ideal filter media. 

Our garnet is AWWA Standard B100-01 and NSF Standard 61 approved.

MANGANESE GREENSAND

 Physical characteristics:

Color: purple black
Density: 85 pounds per cubic foot
Effective size: .30 - .35 millimeters
UC (D 60): < 1.6

Manganese greensand is a purple-black filter medium that is used for the removal of soluble iron, manganese and hydrogen sulfide from well water supplies. It also has the capacity to remove radium and arsenic.

It is produced from the mineral glauconite (zeolite). Using iron exchange properties of natural zeolite, a manganese dioxide coating is deposited on the surface of the glauconite grains. The manganese dioxide acts as a catalyst in the oxidation reduction reaction of iron and manganese. 

This media can be used in two methods of operation: continuous regeneration (CR) or intermittent regeneration (IR). 

AWWA Standard B100-01 and NSF Standard 61 approved.

 Physical characteristics: Color:  Dark Brown
Bulk Density:  27 lbs/cubic foot
Specific Gravity: 1.7 gm/cc
Effective size: .6-.7 mm
Uniformity Coefficient: 1.9
Mesh size: 12 x 35
MTM is a granular manganese dioxide filtering media used for reducing iron, manganese and hydrogen sulfide from water. Its active surface coating oxidizes and precipitates soluble iron and manganese. Hydrogen sulfide is oxidized to a sulfur. The precipitates are filtered out in the granular bed and removed by backwashing.

NORTHERN ULTRA

 Physical characteristics: Color: Light brown
Effective size: .35 - 2.5 millimeters
Acid solubility: <1.7%
Specific gravity: 2.67
MOH hardness: 7
Northern Ultra is an extremely effective filter media because of its ability to hold back coagulum or precipitates containing impurities. Northern Ultra size, angularity and hardness are the important filter sand characteristics to ensure proper filtering.

Northern Ultra is triple washed in our manufacturing process producing a squeaky clean filter sand that is virtually silt and fines free. Initial backwash cycles are reduced as well, saving significant amounts of time and water in your start-up backwash cycle. 

SUPPORT GRAVEL

 Physical characteristics: Color:  Multi-colored
Density:  100 pounds per cubic foot
Mesh size: 1/8 x 2-1/2 inch
Support gravel, the lower strata of a filter bed, acts to support the filter media. The maximum efficiency, the support gravel must possess the necessary attributes of hardness and be rounded or non-angular. Correct gradation and sizing must be calculated to properly support the filter media.

AWWA Standard B100-01 and NSF Standard 61 approved.

WELL PACK

 Physical characteristics: Color:  Multi-colored
Density:  100 pounds per cubic foot
Mesh size: #35 - 1/4"
Well Pack gravel is used for inground wells to form a barrier between the screens and the natural deposit of the land which, in turn, allows for the well to provide a very clean water. 

AWWA Standard B100-01 and NSF Standard 61 approved.

ZEOBEST^® - NATURAL ZEOLITE

 Physical characteristics: Color: Pale-green
Density: 50 pounds per cubic foot
Effective size: .55-.65 mm
Uniformity Coefficient: 1.5
ZEOBEST^® provides unsurpassed clarity with turbidits removed down to 3 microns with our permanently bonding quaternary. (WQA test report 111004.04150.001)

ZEOBEST possesses the highest Cation Exchange Capacity (CEC). ZEOBEST absorbs ammonia from swimming pools to reduce chloramine formation. Reduced chloramine formation decreases eye irritation and improves air quality. ZEOBEST is produced from the highest quality and most homogeneous deposit of natural clinoptilolite zeolite in the US.

 Physical characteristics: Color:  Pale-green
Density:  52 lbs/cubic foot
Effective size: .55-.65 mm
Uniformity Coefficient: 1.0-1.2
ZEOBEST Ultra combines superior filtration clarity down to 3 microns with our permanently bonding quaternary. ZEOBEST Ultra also possess a cation exchange capacity to absorb ammonia ions from water. See the Arizona State

 Physical characteristics: Color:  Pale-green
Density:  52 lbs/cubic foot
Effective size: 1.0-1.2mm
Uniformity Coefficient: 1.5
ZEOBEST Ultra for Backyard Ponds is the ultimate filter media for backyard ponds and fountains providing superior filtration clarity down to 3 microns and Northern's permanently bonding quaternary. This revolutionary media also possess a cation exchange capacity to absorb ammonia ions from water.

ZEOLITE RESIN

 Physical characteristics: Color: amber translucent beads
Density: 52 pounds per cubic foot
Mesh size: 20 to 40 mesh
UC (D 60): < 2.0

Zeolite is a high capacity, high quality gel-type cation resin capable of meeting the most exacting requirements of all water softening functions. Zeolite is supplied in sodium form as colored translucent beads. It does not contain chlorinated solvents. 

The manufacturing process ensures low taste, odor and color throw for potable water. Zeolite meets the requirements for paragraph 173.25 of the Food Additive Regulation of the US Food and Drug Administration. 

NSF Standard 61 approved.